Carrier-Class InfrastructureA Platform Provider’s

PerspectiveMike Twomey

Excel Switching Corporationmtwomey@ExcelSwitching.com

Objectives

• To provide insight from the platform supplier perspective

• To share experiences we’ve seen and been a part of regarding this network scenario

• To help guide developers out of the field and into the lab…There will be no sales if there is no product

Excel AnyGen Platforms

Word of the Day

Flexibility - Flex`i`bil´i`ty

1. the quality of being adaptable or variable;2. the ability to change or be changed to fit

changed circumstances3. the ease with which a system or

component can be modified for use in applications or environments other than those for which it was specifically designed

Flexibility…Let me count the ways

• Application(s) – Fixed & mobile, voice & signaling

• Size – <100 Channels to thousands

• Signaling - IP (SIP & H.323) & TDM (SS7/PRI/CAS)

• Architecture – IMS, SIP, Service Node

• Carrier-class and non-carrier-class – (I know this goes off topic, but as a developer you should be able to provide alternative architectures for an array of customers while minimizing your costs and their costs.)

App Developer Perspective

+ -SIP App Server

Low CapEx “Industry Standard”

– No media control– No TDM/H.323

Service Node

Flexibility - Multi-protocol Low OpEx – Single API, single vendor mgmt Dedicated media

– Hardware $– Hairpin increases OpEx

Multi-function Platform

Low CapEx & OpEx + Flexibility Fast to (new) market(s)No Hairpin of traffic

– Proprietary API

Deploying VoIP

More services…Fewer boxes……Better solution

T1

Tandem TandemACD

PSTN

Service

Node

T1 IPNetwork

G’way

Signaling G’way

SoftswitchSIP App Server

SIP Registration

Server

Softphone

Media Server

PSTN

Tandem

SBC

Excel

T1 IPNetwork SoftphonePSTN

Tandem

SBC

Deploying VoIP-based Prepaid

PSTN

IP Network

1. Multiple Vendor…Interoperability2. Difficult to add new services3. High CapEx and OpEx4. Perceived QOS

Application Server

Media Server

Gateway

Simplifying Your Network

PSTN

IP Network

More than just a gateway…1. Announcements 2. DTMF3. Conferencing4. Recording5. TDM-TDM + IP-IP

Speed time to market and reduce costs by leveraging flexible platform

Simplify…simplify…simplify

Service Provider Benefits 1. Fewer Vendors…Eliminate Interoperability Issues2. Pay as You Grow – Centralized/Distributed3. Carrier Grade Reliability4. Reduced Equipment, Spares & Training CostsApplication Provider Benefits 1. Single API +SS7/PRI + SIP/H.323 Support…

Easy/Low Cost to Add New Services2. Reduced ongoing support costs

T1

Egress Tandem

Open Gateway + Application

Soft Phone

PSTN

ATA + Phone

IPNetwork

SBC

Flexbility Within an Application

3G

2G Internet

IPNetwork

SCP/AS

SIP

SMS-C

Service Node

IPNetwork

VoiceXML

MRF

PSTN

H.248

MGCF

MG

SGW

IMG

IP

SS7PM

Multi-application Flexibility

IP

T1/E1

Multi-service Platform

SS7/C7

C7

Softswitch / SIP App Server

Softswitch / SIP Networks

Open new markets and reduce costs by leveraging a single flexible services platform

BSCMSC

2G Mobility Networks

WAGRNC

MSC Server (Softswitch

)

SIP

SIGTRAN

3G Networks

RTP

SIP Phone

WLAN SIP

Client

Media Gateway

VXML

IMG 1010

PSTN

IP-enabling TDM-based Service Nodes…TDM-

enabling IP-based Service Nodes

IP/WAN

PSTN

RTPH.323SIP

SS

7

T1/

E1

ISD

N

Service Provider

It’s more than the technology…Own YOUR customer…Get footprint and relationship

Conclusion

• For developers, there is no uniform or ideal architecture being adopted across the board by service providers, which therefore requires insight and innovation on your part

• Multi-function platforms can offer substantial benefits to service providers but ONLY if they truly meet the needs of the carrier

• As an app developer, your primary concern should be defining and exceeding your customer(s) needs while differentiating yourself and minimizing YOUR costs